RDX基钛氢复合炸药空中爆炸性能  

Air Explosion Property of RDX-based Titanium Hydride Composite Explosive

作　　者：薛冰[1] 马宏昊[1] 陈伟[1] 沈兆武[1] 

机构地区：[1]中国科学技术大学近代力学系,安徽合肥230027

出　　处：《含能材料》2015年第11期1046-1050,共5页Chinese Journal of Energetic Materials

基　　金：国家自然科学基金面上项目(51174183);国家自然科学基金重点项目(51134012)

摘　　要：采用空中爆炸实验研究了含量和粒径不同的氢化钛对RDX基钛氢复合炸药性能的影响,分析了固相爆炸产物。结果表明,氢化钛粒径减小能有效提高冲击波参数,氢化钛含量为20%时,氢化钛粒径为0.96μm的复合炸药的超压峰值、正相时间和正相冲量较标准RDX分别增加了3.8%,12.7%和14.0%,而粒径为0.96μm的氢化钛含量由10%增加到20%时,冲击波正相冲量增加7.0%,但超压峰值减小5.1%。方差分析表明氢化钛粒径对复合炸药爆炸性能有显著影响,且与氢化钛含量有交互作用。固相爆炸产物分析表明,复合炸药爆炸过程中氢化钛发生了氧化反应,生成TiO2。The air explosion experiments were carried out to investigate the effects of content and size of titanium hydride （ TiH2 ） on properties of RDX-based TiH2 composite explosive. Meanwhile, the solid explosion products were analyzed. Results show that the explosion properties of composite explosive are improved with decreasing of TiH2 size. Compared to standard RDX, the peak overpressure, positive duration and positive impulse of composite explosive with TiH2 content of 20% and size of 0. 96 μm in- crease 3.8%, 12.7% and 14.0%, respectively. As the content of 0.96 μm TiH2 increasing from 10% to 20%, the explosion positive impulse increases 7.0% and the peak overpressure decreases 5.1%. Variance analysis indicates that titanium hydride size has a significant impact on properties of composite explosive, and there was an interaction between titanium hydride content and size. Analysis of solid explosion products reveales that the TiH2 is oxidized into TiO2 during explosion of composite explosive.

关 键 词：氢化钛 RDX 复合炸药 空中爆炸 产物分析 

分 类 号：TQ560.1[化学工程—炸药化工]